Bulk cement
We utilize the modern technology lines & materials in the best way. Long Son Clinker & Cement Products have high quality, content of hazardous impurities such as MgO & total low alkalinity (R2O). Our products meet all the most severe technical requirements of Vietnam standards & International Standards ASTM, BS EN.
Advantages of Long Son Industrial Cement Products PC50 & PCB 40: Having an excess of high grade and stable quality. Therefore, by using Longshan Cement Products, the concrete mixing plants will save the amount of used cement and stable-quality concrete products in accordance with design standards.
- PC50 & PCB40 Industrial Long Son Cement has high early strength (R3 & R7), which enables to push up the construction progress and save construction costs.
- Time for cement setting process of Long Son Cement products are prolonged, which ensures time to deliver the commercial concrete to the far projects.
- The content of free lime & low MgO in the cement is low (<1%), therefore, its volume isn’t expanded after construction and there’s no cracking phenomenon of concrete products using Long Son cement after being taken into use.
- Total R2O alkali content in cement is very low (<0.5%) , which eliminates the causes of corrosion & demolition of concrete structure and increases the sustainability of concrete.
Specification:
No. | Characteristic | Units | Typical Test result | TCVN 2682:2009 PC 50 specified |
01 | Fineness | |||
Speunitcific surface | cm2/g | 3750 | Min. 2800 | |
0.09mm residue | % | 0.5 | Max. 10 | |
02 | Soundness | mm | 1.40 | Max. 10 |
Le Chatelier test (Le Chaterlier) | ||||
03 | Standard Consistence | % | 27.4 | – |
04 | Setting time | |||
Initial set | min | 160 | Min. 45 min | |
Final set | min | 180 | Max. 420 min | |
05 | Compressive strength | |||
03 days | N/mm2 | 30.5 | Min. 25 | |
28 days | N/mm2 | 57.0 | Min. 50 | |
06 | (Magnesium oxide – MgO in cement ) | % | 1.00 | – |
07 | S03 content | % | 2.30 | Max. 3.5 |
08 | Free-CaO | % | 0.60 |